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As a result of radioactive decay a { }_{92}^{238} {U} nucleus
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Easy
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Solving time: 2 mins

As a result of radioactive decay a nucleus is changed to a nucleus. Which particles are emitted in the decay?

A
One proton and two neutrons

B
One -particle and one -particle

C
Two -particles and one neutron

D
Two -particles and one proton

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Book:

Physics Galaxy Optics and Modern Physics Vol 4 (Ashish Arora)

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Text SolutionText solutionverified iconVerified

First alpha particle will be emitted which will change the mass number by 4 and atomic number by 2, and beta particle will increase the atomic number by 1, without changing mass number.
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Practice questions from Physics Galaxy Optics and Modern Physics Vol 4 (Ashish Arora)

Question 1
Easy
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Which of the following radiations has the least wavelength ?
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  2. -rays
  3. -rays
  4. X-rays
Topic

Topic:

Nuclei

Book

Book:

Physics Galaxy Optics and Modern Physics Vol 4 (Ashish Arora)

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Question 2
Easy
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The decay constant of a radioactive sample:
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  2. Increases with increase of external pressure and temperature
  3. Decreases with increase of temperature and increase of pressure
  4. Is independent of temperature and pressure
Topic

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Nuclei

Book

Book:

Physics Galaxy Optics and Modern Physics Vol 4 (Ashish Arora)

View solution

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Medium
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Masses of two isobars and are and amu respectively. It can be concluded from these data that :
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Nuclei

Book

Book:

Physics Galaxy Optics and Modern Physics Vol 4 (Ashish Arora)

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Question 4
Easy
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The electron emitted in beta radiation originates from:
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Topic

Topic:

Nuclei

Book

Book:

Physics Galaxy Optics and Modern Physics Vol 4 (Ashish Arora)

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The heavier stable nuclei tend to have larger ratio because -
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Physics Galaxy Optics and Modern Physics Vol 4 (Ashish Arora)

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If a proton and anti-proton come close to each other and annihilate, how much energy will be released
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Question Text
As a result of radioactive decay a nucleus is changed to a nucleus. Which particles are emitted in the decay?
TopicNuclei
SubjectPhysics
ClassClass 12
Answer TypeText solution:1
Upvotes77